Rotor impact mill (RPMV & RPMX)

Ball shaper

The BHS rotor impact mill is a high-performance crusher with a vertical shaft that addresses the needs of the recycling industry. The mill’s unique impeller rotor works together with a toothed anvil ring to subject the inserted material to severe mechanical stress. Material compounds are crushed and separated selectively, entangled materials are isolated, and brittle-hard materials are crushed very finely. At the same time, metals are shaped into balls and cleaned.

Functional principle of the RPMV (plan view)

Unique crushing principle

The impeller rotor of the BHS rotor impact mill is the only one of its kind in the world. The circumferential speed of the rotor generates centrifugal forces that deliver a high energy load to the inserted material, which is intensely processed by the impact and shear forces caused by the crushing tools. As a result of the rotation, a near-permanent gap is created between the tips of the horseshoe-shaped impellers and the anvil ring. Once the material has been reduced to a size that fits through this gap, it exits the crushing zone.

The machine can be optimally adjusted to customer requirements using the rotor speed and the variable annular gap.

Functional principle of the RPMV (side view)

Two versions of the rotor impact mill

There are two versions of the rotor impact mill. The RPMV model has a proven track record as a ball shaper with a selective crushing effect in the recycling industry. The RPMX model is a turbo-ball shaper. It is used for the recovery of valuable materials that have previously been considered too fine and thus difficult to process, such as cable strands.

For both types of models, there are several machine sizes available with different performance characteristics.

Rotor impact mill of type RPMV – the ball shaper

The RPMV has proven itself in separating composites, crushing brittle components and shaping metals into balls with particle sizes from 5 to 30 mm.

Rotor impact mill of type RPMX – the turbo-ball shaper

A higher circumferential speed and the considerably smaller grinding gap characterize the RPMX. This feature set makes it ideal for ball shaping and separating composite parts with particle sizes from 0 to 15 mm.

Layout of the rotor impact mill RPMV

Layout of the rotor impact mill RPMX with rotor cover plate

Typical application scenarios

Cleaning metals and shaping them into balls

Exposing and shaping NF-metals into balls

Separating composite materials

Separated entangled material mixtures

Finely crushing brittle-hard materials

Shredding elastic materials into particles

Customer trials at the BHS technical center

At our BHS technical center in Sonthofen, we use the rotor impact mills of types RPMV and RPMX to perform industrial-scale tests on customer-specific materials.

Fine fractions of shredded automobile scrap and electronic equipment still contain considerable amounts of precious metals which until now have invariably been deposited in landfills. A new one-of-a-kind process allows to reclaim and sell these metals profitably.

Size: 309 KB

Recycling of resources in steel production

The slag formed during stainless steel production contains valuable raw materials which should preferably be fed back to the melt or intelligently reused. With a treatment plant at Outokumpu Nirosta in Krefeld/Germany ThyssenKrupp MillServices & Systems GmbH (TKMSS) has demonstrated that dry treatment of slag is significantly more economical and environmentally friendly than wet treatment. The central element of the plant technology is impact crushing.

We use cookies in order to adapt the website to the requirements of our visitors in the best possible way. The use of our website indicates your agreement to having cookies stored on your computer.
Data privacy